FW01 — Pacing and Determination of Pace Factor - Report

FW01 — Pacing and Determination of Pace Factor

I — Project Details

Item	Record
Fieldwork / Project	FW01 — Pacing and Determination of Pace Factor
Location	University Campus — Open Walkway and Field Edge
Date / Time	September 3, 2026; 1:00–4:00 PM
Group / Section	Group 1 / CE Surveying
Survey Type	Pace calibration and reconnaissance distance estimation
Calibration Baseline	C-01 to C-02 = 50.000 m
Unknown Line	U-01 to U-02
Course Convention	One individual step = one pace
Weather / Surface	Partly cloudy; dry pavement

II — Survey Team and Equipment Used

A — Survey Team

Member	Assignment / Description	Remarks
Student A	Party Chief / Safety Lead	None
Student B	Head Tape Person	None
Student C	Rear Tape Person	None
Student D	Recorder	None
Student E	Station Marker / Ranging Assistant	None
Student F	Check Observer	None

B — Equipment Used

Equipment / Instrument	ID / Description	Quantity	Remarks
Steel Tape	ST-04; 50 m graduated steel tape	1	Serviceable; used for the reference and independent check
Ranging Rods	RR-03 and RR-07	2	Serviceable
Station Markers	C-01, C-02, U-01, U-02	4	Stable and visible
Field Notebook / Data Sheet	Group field record	1 set	Raw observations retained
Calculator	Scientific calculator	1	Serviceable
PPE Set	Hard hat and high-visibility vest	6	Complete

III — Project Sketch and Photo Documentation

A — Project Sketch

FW01 pacing field sketch showing the calibration and unknown lines — FW01 — Pace Calibration Field Sketch

B — Google Maps Location Points

Point / Area	Map Record	Purpose / Limitation
Calibration baseline area	Verified Google Maps pin and WGS84 coordinate required in the actual report	Establishes geographic context only
Unknown-line area	Verified Google Maps pin or marked route required in the actual report	Locates the independent pacing check
C-01, C-02, U-01, U-02	Station IDs shown on the field sketch	Local field record; not geodetic control

No fictional latitude/longitude values are assigned to this representative dataset. Actual submissions must insert the group's verified Google Maps location point(s).

C — Photo Documentation — Dedicated Page

Reserve one complete report page for the original field photographs represented by this register.

Photo	Image File	Description
1	FW01-photo-01.jpg	50.000 m calibration baseline with C-01 and C-02 station markers
2	FW01-photo-02.jpg	Student establishing a normal walking pace before the calibration trial
3	FW01-photo-03.jpg	Pacing trial in progress along the calibration baseline
4	FW01-photo-04.jpg	Unknown-line check and recorder preserving the raw pace counts

IV — Observations and Data

A — Calibration Measurement Table

Known reference distance: 50.000 m.

Trial	Direction	Raw Pace Count	Status	Retained Count / PF Input
1	C-01 → C-02	64	Retained	64
2	C-02 → C-01	63	Retained	63
3	C-01 → C-02	64	Retained	64
4	C-02 → C-01	65	Excluded — highest	—
5	C-01 → C-02	63	Retained	63
6	C-02 → C-01	64	Retained	64
7	C-01 → C-02	62	Excluded — lowest	—

All seven calibration observations remain visible in the raw record. Only the single highest and single lowest values are excluded from the calibration mean, leaving five retained calibration counts for the pace-factor computation.

B — Unknown-Line Check Observations

Trial	Direction	Raw Pace Count
1	U-01 → U-02	92
2	U-02 → U-01	93
3	U-01 → U-02	92
4	U-02 → U-01	92
5	U-01 → U-02	93

C — Computed Data Summary

Quantity	Result
Sum of seven raw calibration counts	445 paces
Excluded highest count	65 paces
Excluded lowest count	62 paces
Retained calibration count total	318 paces
Trimmed mean calibration count	63.6 paces
Adopted pace factor	0.7862 m/pace
Mean unknown-line count	92.4 paces
Paced distance	72.642 m
Independently taped distance	72.500 m
Discrepancy	+0.142 m
Absolute percentage error	0.195%

V — Computations and Assumptions

A — Trimmed Mean Calibration Count

\sum N_i=64+63+64+65+63+64+62=445\text{ paces}

\overline{N}_{\mathrm{trim}}=\frac{445-65-62}{7-2}=\frac{318}{5}=63.6\text{ paces}

B — Pace Factor

PF=\frac{50.000}{63.6}=0.7861635\text{ m/pace}\approx\boxed{0.7862\text{ m/pace}}

C — Unknown-Line Check

\overline{N}_{\mathrm{unknown}}=\frac{92+93+92+92+93}{5}=92.4\text{ paces}

Using the unrounded pace factor in the calculation,

D_{\mathrm{paced}}=92.4(0.7861635)=72.6415\text{ m}\approx72.642\text{ m}

E=72.6415-72.500=+0.1415\text{ m}\approx+0.142\text{ m}

\%E=\frac{|72.6415-72.500|}{72.500}(100)=0.1952\%\approx0.195\%

Assumptions and conventions:

One individual step is counted as one pace.
The 50.000 m calibration baseline is the independently measured horizontal reference distance.
Exactly one highest and one lowest calibration count are excluded from the mean while remaining visible in the raw record.
The five retained calibration observations are the only counts used to determine the pace factor.
The unknown-line check is tabulated separately and uses five complete pacing trials.
The same adopted pace factor is used for the independent unknown-line pacing check.
Unrounded values are retained through intermediate computations; reported values are rounded only at the final presentation stage.
The independently taped unknown-line distance is used only as the accuracy check and not to determine the pace factor.

VI — Remarks and Conclusions

A — Remarks

Natural gait was established before the first calibration trial.
All seven raw calibration counts were retained in the field record, including the excluded highest and lowest observations.
Forward and reverse walking directions were alternated where practical to reduce directional bias.
Five separate unknown-line trials were completed and tabulated independently from the calibration table.
The calibration and unknown-line surfaces were dry and unobstructed during the representative activity.
Likely error sources include gait inconsistency, judging the exact station crossing, distraction, and surface changes.
Pacing remains an approximate reconnaissance method and does not replace direct or instrument-based measurement where higher accuracy is required.

B — Conclusion

The adopted individual pace factor is 0.7862 m/pace using the course convention that one step equals one pace. It was derived from seven raw calibration trials after excluding only the single highest and single lowest observations from the mean. Applying the factor to the five-trial unknown-line average produced a paced distance of 72.642 m, compared with the independently taped value of 72.500 m, for an absolute percentage error of 0.195%. The result demonstrates a consistent single-baseline pace calibration suitable for reconnaissance-level distance estimation.

Example filename: G#1-P#1-Pace Factor.pdf